Lenovo ThinkStation P920 Hardware Maintenance Manual page 164

Figure 106. PCIe card installation order for computers with one microprocessor
Figure 107. PCIe card installation order for computers with two microprocessors
To remove or install a PCIe card, do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 103.
2. Lay the computer on its side for easier access to the PCIe card slots.
3. Locate the PCIe card slot. See "Parts on the system board" on page 38.
4. If necessary, remove the direct cooling air baffle for easier operation. See "Direct cooling air baffle" on
page 107.
5. To remove a PCIe card, do the following:
a. For some models, remove the PCIe card retainer first.
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P920 Hardware Maintenance Manual